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verma pg 161 problem 28
2 persons each of mass m are standing at the 2 extremes of a railroad car of mass M. The person left jumps to the left with a speed u w.r.t the state of the car before the jump. Thereafter, the other person jumps to the right with a speed u w.r.t the state of the car before his jump. Find the final velocity of the car.
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Rates for everyone who replies.....
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if any group present on ortho position of benzoic acid it always increases acidic nature of acid because this group decreases outer resonance of ring towards acid which increases acidic nature for example orthonitrobenzoic acid is most acidic in any nitro derivative of benzoic acid.orthomethyl benzoic acid is maximum acidic than other isomers.similarly if any group present on ortho position of aniline it decreases basic nature.
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check out engineerprep.com
it has free test papers.....most of the questions are from resonance
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someone please come to my help...
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please download the image for clarity
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answer is c
please explain
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Download image for clarity
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Please post this question in the organic chem forum.....not in the community shelf
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then what is resonance energy?
"The gain in stability of the resonance hybrid over the most stable of the canonical structures is called the resonance energy."
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please explain how the resonance hybrid can have lesser energy than the most stable structure.
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here pressure is constant
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